Safety First
Lab Equipment
Crazy Conversions
Nature of Science
Glorious Graphs
100
If your lab partner’s clothes catch on fire, what is the first thing you should do?
Tell the teacher!
100
This is used to protect a digital scale from a powdered substance
Weigh boat
100
Convert 23 cm to m.
Show every step
23 cm * {1m}/{100cm}=0.23m
100
Define dependent variable.
What is being measured in an experiment
100
This type of graph is used for showing percentages.
Pie Chart
200
What is the best safety equipment for helping a person who is on fire?
Fire blanket
200
Used to transfer liquids from large to small containers
Funnel
200
Convert 4,080 kg to g
Show every step
4080kg * {1000 g}/{1 kg}=4,080,000g
200
Factors that stay the same in an experiment so that the results are considered reliable are known as…
Constants
200
According to the graph, at what temperature does 300 grams of sugar dissolve in water?
60℃
300
What word is used to describe how to appropriately smell an unknown substance in lab?
Waft
300
The best glassware for making precise volume measurements
Graduated cylinder
300
Convert 3,600,000 mm to km.
Show every step
3,600,000mm * {1m}/{1000mm} * {1km}/{1000m} =3.6 km
300
A rule or principle that describes how something happens in nature is known as a…
Law
300
The best graph to represent quantitative data vs. quantitative data
Line graph
400
List 3 things you should wear to protect yourself from harmful chemicals.
- Safety goggles
- Lab apron
- Long pants
- Close toed shoes
(just need 3)
400
List the two objects that can be used to heat substances in lab.
- Hot plate
- Bunsen burner
400
Convert 75℉ to ℃.
Show every step
(75℉-32)*5/9=24℃
400
Explain the difference between precise and accurate measurements.
Precise = consistent/specific
Accurate = correct
400
List 3 things every bar graph must have.
- Title
- X-axis labeled
- Y-axis labeled
500
What does P.A.S.S. stand for?
Pull
Aim
Squeeze
Sweep
500
What is the curve that forms in a liquid in a graduated cylinder called?
Meniscus
500
Convert 286 K to ℃.
Show every step
286 K - 273.15=12.85℃
500
A team of scientists want to test if watching commercials makes kids eat more snacks when watching TV. They gather two groups of elementary school students. The first group watches 2 hours of TV with no food commercials. The second group watches 2 hours of TV with food commercials every 15 minutes. After, the scientists record how many goldfish the students ate during the time period.
List the independent variable, dependent variable, control group, and experimental group.
IV = whether or not kids watch food commercials
DV = amount of goldfish eaten
Control group = group without food commercials
Experimental group = group with food commercials
500
What axis does the dependent variable tend to go on?
What axis does the independent variable tend to go on?
- DV on the Y-axis
- IV on the X-axis